One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,6)(4,5)(7,8)(9,10)(11,15)(12,16)(13,14)(17,18,20,25,21,24,30,23)(19,26,28,32,27,31,29,22)(2,5)(6,8)(10,14)(11,12)(17,19)(18,22)(20,29)(21,27)(23,26)(24,32)(25,31)(28,30) involution — undirected(1,3,4,7)(2,6,5,8)(9,11,13,12)(10,15,14,16)(18,23)(19,27)(20,30)(22,31)(24,25)(26,32)(9,12,13,11)(10,16,14,15)(19,27)(22,32)(26,31)(28,29)(10,14)(15,16)(18,24)(22,32)(23,25)(26,31) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.